Sony CDX-GT81UW / CDX-GT860U Service Manual ▷ View online
2
CDX-GT81UW/GT860U
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
other than those specified herein may result in hazardous
radiation exposure.
USB Player section
Interface
USB (Full-speed)
Maximum current
500 mA
Power amplifier section
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output
52 W
×
4 (at 4 ohms)
General
Outputs
Audio outputs terminal (front/rear)
Subwoofer output terminal (mono)
Power antenna relay control terminal
Power amplifier control terminal
Subwoofer output terminal (mono)
Power antenna relay control terminal
Power amplifier control terminal
Inputs
Telephone ATT control terminal
Illumination control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Antenna input terminal
AUX input jack (stereo mini jack)
Illumination control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Antenna input terminal
AUX input jack (stereo mini jack)
Tone controls
Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements
12 V DC car battery (negative ground)
Dimensions
Approx. 178
×
50
×
190 mm
(7
1/8
×
2
×
7
1/2
in.) (w/h/d)
Mounting dimensions
Approx. 182
×
53
×
163 mm
(7
1/4
×
2
1/8
×
6
1/2
in.) (w/h/d)
Mass
Approx. 1.6 kg (3 lb. 9 oz.)
Supplied accessories
Card remote commander:
CDX-GT81UW:
RM-X152
CDX-GT860U:
RM-X156
USB cap
Parts for installation and connections (1 set)
CDX-GT81UW:
RM-X152
CDX-GT860U:
RM-X156
USB cap
Parts for installation and connections (1 set)
Design and specifications are subject to change without
notice.
notice.
US and foreign patents licensed from Dolby
Laboratories.
Laboratories.
optical pick-up
semi-fixed resistor
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SERVICE NOTES
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
3
CDX-GT81UW/GT860U
•
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
This label is located on the bottom of the chassis.
This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
• CDX-GT860U
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
• Notice that the minus side of a tantalum capacitor may be damaged
by heat.
TEST DISCS
Please use the following test discs for the check on the CD section.
YDES-18 (Part No. 3-702-101-01)
PATD-012 (Part No. 4-225-203-01)
PATD-012 (Part No. 4-225-203-01)
• CD playback
You can play CD-DA (also containing CD TEXT*), CD-R/CD-
RW (MP3/WMA/AAC files also containing Multi Session) and
ATRAC CD (ATRAC3 and ATRAC3plus format).
RW (MP3/WMA/AAC files also containing Multi Session) and
ATRAC CD (ATRAC3 and ATRAC3plus format).
Type of discs
Label on the disc
CD-DA
MP3
WMA
AAC
ATRAC CD
* A CD TEXT disc is a CD-DA that includes information such as
disc, artist and track name.
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CDX-GT81UW/GT860U
TABLE OF CONTENTS
1.
SERVICE NOTE
........................................................
5
2.
GENERAL
Location of Controls ........................................................
6
Connections .....................................................................
7
3.
DISASSEMBLY
3-1.
Base Panel Assy ............................................................... 12
3-2.
Sub Panel Assy ................................................................ 12
3-3.
CD Mechanism Block ..................................................... 13
3-4.
Driving Section (DB-F07) ............................................... 13
3-5.
Main Board ...................................................................... 14
3-6.
Servo Board ..................................................................... 14
3-7.
Chassis (T) Sub Assy ....................................................... 15
3-8.
Roller Arm Assy .............................................................. 15
3-9.
Chassis (OP) Assy ........................................................... 16
4.
DIAGNOSIS FUNCTION
........................................ 17
5.
DIAGRAMS
5-1.
Block Diagram –Main Section– ...................................... 21
5-2.
Block Diagram –Display Section– .................................. 22
5-3.
Printed Wiring Boards –Main Section– ........................... 24
5-4.
Schematic Diagram –Main Section (1/4)– ...................... 26
5-5.
Schematic Diagram –Main Section (2/4)– ...................... 27
5-6.
Schematic Diagram –Main Section (3/4)– ...................... 28
5-7.
Schematic Diagram –Main Section (4/4)– ...................... 29
5-8.
Printed Wiring Boards –Display Section– ....................... 30
5-9.
Printed Wiring Board –Base Panel Section– ................... 31
5-10. Schematic Diagram –Display Section– ........................... 32
6.
EXPLODED VIEWS
6-1.
Main Section .................................................................... 42
6-2.
Main Board Section ......................................................... 43
6-3.
Front Panel Section ......................................................... 44
6-4.
CD Mechanism Section (MG-101U-188//Q) .................. 45
7.
ELECTRICAL PARTS LIST
.................................. 46
Ver. 1.1
5
CDX-GT81UW/GT860U
SECTION 1
SERVICE NOTE
SERVO BOARD
CN2
CN2
MAIN BOARD
CNP301
CNP301
J-2502-076-1
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
as shown below.
• Connect the MAIN board (CNP301) and the SERVO board (CN2)
with the extension cable (Part No. J-2502-076-1).
NOTE FOR THE OPENING OF THE FRONT PANEL
In this set, the front panel is lowered to below the bottom face when
it is opened.
When servicing the set, place it on a stand having a height of about
2 cm.
it is opened.
When servicing the set, place it on a stand having a height of about
2 cm.
NOTE FOR REPLACEMENT OF THE SERVO BOARD
When repairing, the complete SERVO board (A-1177-357-A) should
be replaced since any parts in the SERVO board cannot be repaired.
be replaced since any parts in the SERVO board cannot be repaired.
stand
NOTE FOR REPLACEMENT OF THE USB CONNECTOR
(CN903)
(CN903)
To replace the USB connector requires alignment.
1. Insert the USB connector into the front panel.
2. Place the DISPLAY board on the front panel and align the
1. Insert the USB connector into the front panel.
2. Place the DISPLAY board on the front panel and align the
terminals of the USB connector with the holes in the DISPLAY
board.
board.
3. Solder the four terminals of the connector.
DISPLAY board
front panel
USB (socket) connector